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Finding the Fourth Proportional to 1,950.12, 2,911.05 and 1,805.60

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Solution

The fourth proportional to 1,950.12, 2,911.05 and 1,805.60 is: 2,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.12 : 2,911.05 = 1,805.60 : x
  2. Step 2: Convert to fraction form
    1,950.12/2,911.05 = 1,805.60/x
  3. Step 3: Cross multiply
    1,950.12x = 2,911.05 × 1,805.60
  4. Step 4: Simplify right side
    1,950.12x = 5,256,199.16
  5. Step 5: Solve for x
    x = 5,256,199.16/1,950.12
  6. Step 6: Final answer
    x = 2,695.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.